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Thread: copper pipe straps, solder?

  1. #1
    DIY Member northman's Avatar
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    May 2007

    Default copper pipe straps, solder?

    I noticed in a couple places the plumber that did work on my house soldered the copper pipe straps to the pipe, is this normally done? I had always just thought they screwed down and held the pipe with friction, never thought about soldering them.


  2. #2
    Master Plumber master plumber mark's Avatar
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    Feb 2005
    indianapolis indiana - land of the free, home of the brave....
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    Talking probably some old german plumber

    It is just the way the guy liked to work..

    it is certainly makes for a very solid job
    and perhaps it keeps the line from ever
    making knocking --creaking noises

    I see it all the time
    although I have wondered if it wont let
    a long run expand and contract properly

    best to let sleeping dogs lie

  3. #3
    Consultant cwhyu2's Avatar
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    Aug 2007
    Cincinnati OH


    I have sen this done before and have done it myself.
    But on a long run I wouldnt .As Mark said.

  4. #4
    Licensed Grump GrumpyPlumber's Avatar
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    Jun 2007
    Licensed Grump


    Soldering strap clips to copper pipe for reducing expansion noises is redundant.
    The straps move, as long as the screws on the clips are tight there's no creaking, not from the hanger at least.
    "The biggest regrets we have in life are the chances we never took."

  5. #5
    Master Plumber Dunbar Plumbing's Avatar
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    Apr 2005
    Northern Kentucky/Greater Cincinnati Area


    There is a plumber in my area that has been using galvanized ductwork supports and soldering to copper.

    Everyone knows what's going to happen years down the road, it will eat a hole in that copper pipe.

    I understand the ease of those over cutting a piece a wood and banging 2 or 4 nails in but that is just improper workmanship.

    This same plumber is the same plumber that heats a staple to put a weep hole in a sump pump discharge to prevent air lock,

    same guy who hangs a ST-12 tank perpendicular from the water line and watch nearly 40 pounds of water make it bend down when it blows,

    Same guy that doesn't know how to wipe a solder joint down after completion to clean up the flux.

    He does it like he knows he ain't coming back. Gives me a job but should I care? Yes

    You're a professional, act like one.
    Read what the end of this sentence means.

  6. #6
    Engineer Furd's Avatar
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    Jul 2007
    Wet side of Washington State


    My plumbing is all suspended by copper-coated long U staples. Most of them were at one time soldered to the copper piping and most of them have since broken loose.

  7. #7
    DIY Senior Member construct30's Avatar
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    Jun 2007
    NorthWest PA


    If I strap a copper pipe to the joist, I like to use the plastic straps. I think the pipe has to be able to expand and contract. The plastic straps do it quieter. If only some of the straps were soldered then he was working by himself and just wanted to keep the pipe from moving while he worked.

    They do make copper coated hangers that look just like the duct hangers, I would never allow someone to solder metal to copper. Of course some of the cheap copper coated straps rust and we use them, probably just as bad. They just look better until we leave. That's why I switched to plastic straps. They also work on the PEX I use.


  8. #8


    I have been using the pipe insulation and then using a bigger strap to hold them down. I only do this on long open runs. They can move all they want and will not bind as easy or make noise when they do it. The rest of the time I just use a standard copper strap.

    Part of the reason I started doing this is because of the hot water recalculation systems that everyone wants on there main water lines. I donít use the pump method.


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